[Dovecot] Possible bug in shared namespace variable?

[Tom Clark]

As you would have seen earlier I've created a shared mailbox with the
following namespace:

namespace {
  type = shared
  separator = .
  prefix = Shared.%%n.
  location =
maildir:/var/vpopmail/domains/%%d/%%n/Maildir:INDEX=~/Maildir/Shared/%%n
  subscriptions = no
  list = children
}

This works perfectly, but for some reason the %%n variable in the location
maildir is blank. Everywhere else %%n is used works (e.g. the prefix and
INDEX).

This means for the shared mailbox under support at mailbox.com I get a folder
Mailder in the domain folder:

/var/vpopmail/domains/mailbox.com/Maildir instead of
/var/vpopmail/domains/mailbox.com/support/Maildir.

Has anyone else come across this?